JP3406301B2 - Improved telescopic sight and reticle therefor - Google Patents

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic sight, and more particularly to a focusing screen for use in a telescope.

[0001] Enthusiasts, whether police, Olympic shooters, or weekends only
However, all gunners have one common purpose. It is to shoot the target accurately and steadily. Accuracy and solidity in shooting greatly depend on the skill of the shooter and small arms and ammunition.

The accuracy of firearms can be extended by precision manufactured components, including precision manufactured ammunition. It is well known that in targeted fire, the accuracy of the shot can be improved by using ammunition that holds the weight and type of the projectile gunpowder, the weight and size of the bullet, and the size of the ammunition cylinder within very tight limits. Has been.

However, at very long ranges such as over 500 yards, the skill of the shooter and the density of the ammunition do not provide sufficient assurance that the shooter will hit the target. As the range increases, other factors affect the flight of the bullet and the impact point at the range. One of these factors is the "bullet drop".
A "bullet drop" is caused by the effects of gravity on a moving bullet and is characterized by a bullet path that curves as the roundness of the Earth at long range. Therefore, when shooting targets at long distances, it is necessary to raise the barrel and aiming points of the weapon to adjust the bullet drop. Other factors, such as wind, magnus effects (ie, lateral friction on a rotating bullet whose axis is perpendicular to the direction of the wind, caused by the wind), bullet shape, and weapon idiosyncracy. , Drifting the bullet left or right from the central passage over long distances. This effect is commonly referred to as the "windage" effect. So to shoot a target at long range, to compensate for the drift of the bullet,
We need to move the barrel of the weapon slightly to the left or right to correct the windage. Therefore, in order to fire a target at long range, the shooter looks at the target, accurately estimates the range to the target, estimates the impact of the bullet drop and the wind that hits the bullet, and uses this information to trigger. The firearm barrel must be properly positioned before pulling.

Conventional telescopes or scopes are not effective at long range, even above 600 to 800 yards. The crosshairs on such scopes are typically located in the center of the field, with a vertical crosshair providing the center indicator for windage adjustments and a horizontal crosshair providing the center indicator for bullet drop adjustments. To do. Even with improvements to this basic system, it has so far not been possible for an accomplished shooter to quickly and reliably target and hit a target over long distances. This is the same regardless of the weapon used (always assuming that the weapon can fire to the target at the desired long range).

For example, Critchett US Pat. No. 1,190,121
No. 4,968,049 discloses a reticle for use in a riflescope with a range finder provided with markings for finding range in relation to human height. Due to the peculiar polar deformations of any given individual used in the manufacture of the reticle, and the resulting inaccuracies in long range, Critchett's scope is only effective up to 600 yards. .

Rubbert, US Pat. No. 3,948,587, discloses a first crosshair that intersects properly in the center of the field, a second horizontal crosshair at different intervals to form a rangefinder, and a given inferred target. Discloses a reticle and telescope system with well-defined aiming devices and points based on the size of the. Rubbert
Of the preferred embodiment is designed for use in shooting deer with a chest thickness of 18 inches. But Critch
The Rubbert patent's utility is questionable when shooting other targets of different sizes at long range, such as the ett patent.

Leatherwood US Pat. No. 3,493,733
A variable power scope is disclosed that includes an aiming crosshair and two upper crosshairs for chiseling a conventional size target at conventional distances. The scope is attached to the gun barrel and covers the target with a crosshair that crosses the target, and an adjustment ring that expands or contracts the crosshair that crosses the target. By rotating, the position of the scope relative to the gun barrel can be adjusted up and down to compensate for the bullet drop. Leatherwood scopes, like the others mentioned above, have limited practicality at long range. The reason for this is that the Leatherwood scope was designed with a target of a certain size in mind, which would be inaccurate if you used a target of a very different size. . Another reason is that at long range, the scope cannot move sufficiently with respect to the barrel (ie, is obstructed by the gun barrel).

US Pat. No. 4,403,421 to Shepherd
It also discloses a scope having first and second focusing screens. A second reticle, which is a polygon reticle with different markings on different faces, can be rotated into position to compensate for bullet drops and to determine target range for different sized targets. . However, it is time consuming to rotate the second reticle to locate the proper target shape to determine range, and is also undesirable as it distracts the shooter's attention from the target. .

The inaccuracy of range finding peculiar to these conventional techniques can be solved by using a laser range finder. However, since the laser rangefinder often emits visible light, the beam from the laser rangefinder is detected and the position of the shooter is known, so the target that is a living thing moves before shooting, or other This can lead to undesirable results. In addition, laser range finders use complex electronics and must be handled with care.
In order for a laser range finder to find its range, it needs a highly reflective or wide sided target. Finally, because the laser range finder requires power,
The shooter must carry the power supply. This further increases the burden on the shooter, and the range finder may not be usable due to the power supply becoming unusable or exhausted during use.

Therefore, an experienced shooter can use his knowledge and experience to accurately determine the range to a target of any guessable size, regardless of the size of the target, without the need to move the ring or adjust the scope. Depending on the visual acuity of the shooter and the maximum range of the small firearm selected, a range of at least about 1200 yards to about 2500 yards or more is provided due to the provision of a focusing screen using a telescopic range finder that can be identified In, there is a need for a telescope that can accurately shoot a target. SUMMARY OF THE INVENTION In one embodiment, the invention comprises a housing having means for mounting the housing in a fixed position relative to a gun barrel, an objective lens mounted at one end of the housing, and one end of the housing. And an eyepiece attached to the opposite ends, and further having a focusing plate mounted between the objective lens and the eyepiece in the housing, the focusing plate having an optical center and a plurality of aiming points. And having an aiming point formed by a first vertical crosshair that intersects the optics of the reticle, the first horizontal crosshairs for targets at a range greater than 500 yards, preferably well above the optics. Crosses the first vertical crosshair to provide at least one aiming point, the first vertical crosshair and the first horizontal crosshair are attached to the gun barrel. Form a quadrant on the upper right, a quadrant on the upper left, a quadrant on the lower right, and a quadrant on the lower left, and the plurality of second horizontal crosshairs intersect with the first vertical crosshair and become the first vertical crosshair. And a plurality of second vertical crosshairs that intersect at least a plurality of the second horizontal crosshairs and are spaced at predetermined intervals along at least a plurality of the second horizontal crosshairs and are perpendicular to the horizontal crosshairs. Each intersection between the crosshairs forms a plurality of aiming points, is located on the reticle and further comprises an optical rangefinder means including markings for determining range to a known or inferrable target. A telescopic sight is obtained. The telescope in this embodiment may be a fixed power scope or a variable power scope. When the lens is mounted on the housing to allow the power to be varied along a given range, it is most preferable to mount the reticle between the objective lens and the variable power lens.

In another embodiment, the present invention provides a focusing screen for use with any conventional telescope.
In this case, it does not matter whether the telescope is a fixed power scope or a variable power scope. The reticle of this embodiment is preferably made of an optically transparent wafer or disc with an optical center. This light heart
Matches the center of the field of view when the wafer is mounted on the scope. A first vertical crosshair having a predetermined thickness traverses the disc and intersects the optical center of the disc. The first horizontal crosshair having a predetermined thickness most preferably intersects with the first vertical crosshair in a portion above the optical center of the disc, and the upper right quadrant, upper left quadrant, lower left quadrant, right Form the lower quadrant. The plurality of second horizontal crosshairs having a predetermined thickness are spaced at equal intervals along the first vertical crosshair. Preferably, at least some of these second horizontal crosshairs are identified as unique identifiers to assist the shooter in finding a suitable horizontal crosshair for use in selecting aiming points. A plurality of second vertical crosshairs having a predetermined thickness are evenly spaced along at least some of the second horizontal crosshairs to assist in making accurate windage adjustments. Finally, a separate range finding means
It is attached to one of the two to help the shooter find the range to the target.

In view of the drawings and detailed description of the invention,
Obviously, other embodiments are possible. DETAILED DESCRIPTION OF THE INVENTION As shown in FIGS. 1 and 4, a telescopic sight 10 (also referred to herein as a “scope”) includes a gun barrel 3
8 is provided with a housing 36 that can be fixedly attached. The housing 36 is preferably made of steel or aluminum, but can be essentially any durable, substantially inflexible material convenient for making optical devices. The objective lens or lens assembly 12 is mounted on one end of the housing 36. An eyepiece lens or lens assembly 14 is attached to the other end of the housing 36. Such a lens can be conventionally installed and either polished from one piece of glass or other optical material (eg, transparent plastic) for focusing, or two or more pieces of the material. It has been well known in the past to manufacture by bonding with a light-transmissive adhesive or the like to collect light. Therefore, the term "lens" is used herein to refer to a lens made from a piece of light glass, or other material capable of collecting light, or from two or more materials combined together to collect light. It is used with the intention of covering any of them. As will be appreciated by those skilled in the art, when the scope 10 is attached to the gun barrel 38,
The objective lens 12 faces the target and the eyepiece lens 14 faces the eye of the shooter.

Another optical component that can be provided within the housing 36 is the variable power optical component 16 for a variable power scope. With such a variable power scope, the user can select a desired power within a predetermined power range. For example, 3-
With a 12x50 scope, the user has a low power (ie 3x50), high power (ie 12x5)
0), or any power along the continuous spectrum in between.

Finally, a focusing screen is generally provided to assist the shooter in shooting the target. The reticle is typically (but not necessarily) constructed of an optical material such as optical glass or optical plastic and is in the form of a disk or wafer with sides substantially parallel. In the fixed power scope, the focusing plate is the eyepiece lens 14 and the objective lens 1.
Can be mounted anywhere between the two. In the variable power scope, the objective lens 12 and the optical component 1
Most preferably, a reticle is attached between 6. At this position, the clear size of the reticle as viewed through the eyepiece varies with power, as can be seen, for example, by comparing FIG. 2 (high power) and FIG. 3 (low power).
When the focusing screen of the present invention is attached to a variable power scope, it is possible to use S, which is very excellent in optical property, in Biebertal, Germany.
We recommend the variable power scope from chmidt & Bender GmbH Co. KG. Schmidt & Bender 3-12 x 50 or 4
When using a scope such as -16x50 and the reticle is mounted between the objective lens and the variable power optical component 16, the selected destination on my reticle (discussed in detail below) is It turns out that the shooter does not change as he adjusts the scope in and out to find the most desirable power for a shot.

As shown in FIG. 2, the preferred focusing screen 18 of the present invention is a substantially flat disk, a wafer 19 formed of substantially transparent light glass, or other suitable for manufacturing optical lenses. Made of material. The disk 19 has two substantially parallel sides. A first vertical crosshair 20 is provided on one side of the disk 19 using conventional methods such as etching, printing, or adding conventional diameter hair or wire. Etching is preferred. The first vertical cross line 20 preferably bisects the disk 19 and intersects the optical center 21 of the focusing screen 18. Further, it is most preferable that the first horizontal crosshairs 22 are provided and intersect the first vertical crosshairs at a position sufficiently above the optical center 21. This positioning of the first horizontal crosshairs provides the additional essential field of view required for accurate shooting at long distances. Therefore, as shown in FIG. 4, when viewed through the scope accurately attached to the gun barrel, the first vertical crosshair and the first horizontal crosshair are the upper right quadrant, the upper left quadrant, the lower left quadrant, and the right quadrant. Form four quadrants, the bottom quadrant.

In order to assist the range adjustment and to locate the aiming point on the reticle suitable for the distance to the target, preferably both above and below the first horizontal crosshairs 22.
A plurality of second horizontal crosshairs 24 are provided at equal intervals along the vertical crosshairs 20. Some of these second, horizontal crosshairs are provided with unique symbols 28 that are useful in quickly finding a particular horizontal crosshair. The symbols 28 may be numbers as shown in FIG. 2, letters, or other symbols. Symbol 2
8 is used only for identification purposes.

To assist in adjusting the shooter's windage, and to place a proper aiming point on the reticle for the distance to the target, a plurality of second horizontal crosshairs 24 are provided on at least a few of them. Second vertical crosshair or notch mark 2
6 are provided at equal intervals.

Most preferably, a means for determining the range is provided in the lower left quadrant. As shown in FIG. 2, the range finder 30 includes a vertical arm 32 and a crossed horizontal arm 34. The vertical arm 32 is provided with a plurality of horizontal crosshairs that intersect the vertical arm 32 at equal intervals, and the horizontal arm 34 is provided with a plurality of horizontal crosshairs at equal intervals, preferably in the downward direction. It is provided in a stretched form. Range finding
At least some of the crosshairs have markings associated with them that are useful in determining range.

The range finding crosshairs are not conventional, I have called "inch of angle" (inche
Most preferably it is based on a scale called the s of angle).
One "inch of angle" is defined as the angle (or distance on the reticle) that is intended to cover exactly one inch at 100 yards. In the reticle shown in FIG. 2, 1 inch of angle has two adjacent
The distance between two rangefinder crosshairs. This means that the space between two adjacent rangefinder crosshairs covers a 1-inch target at 100 yards (c
over), or strictly including this. Similar scales may be used for metric shooters. This scale is what I call the "centimeter of angle", which is the distance on the reticle that exactly covers one centimeter at exactly 100 meters. Is. Traditional scales such as the “minute of angle” scale and the Mil Radian scale can also be used, but these are less intuitive to recognize and more difficult to accurately estimate for long range. It is not preferable because

The first vertical crosshairs and the second on the first horizontal crosshairs
The distance between the crosshairs is also determined in relation to the scale used in the rangefinder. It can be seen by referring to the range finder that in the reticle shown in FIG. 2 that the space between the second horizontal crosshairs labeled 5, 6 is 5 inches of angle. Between the horizontal crosshairs 5 and 6, there is a second horizontal crosshair (or scribe mark) shorter than this. This short second horizontal crosshair is 2.5 inches of angle from either the second horizontal crosshairs 5 or 6. As shown in FIG. 2, the second vertical crosshairs 26 are separated by a distance of 5 inches of angle.

The line thickness is also preferably determined in relation to the range finding scale used. For the preferred embodiment shown in FIG. 2, the preferred thickness of the first vertical crosshairs 20 and the first horizontal crosshairs 22 is 0.5 inches of angle, and that of the second horizontal crosshairs and the second vertical crosshairs. The preferred thickness is 0.25 inch of angle. The thickness of the range finder arms 32 and 34 and the marked (5, 10, 15) range finder crosshairs is preferably 0.25 inch of angle, and the thickness of the intermediate range finding crosshairs. Is 0.
It is preferably 1 inch of angle.

To use the scope and reticle of the present invention, it is preferred that the shooter be familiar with the characteristics of the weapon and ammunition used. The scope and reticle can be calibrated for use with almost any type of rifle. To calibrate the scope and reticle, the shooter first determines the trajectory based on the characteristics of the weapon and ammunition used. For example, a 30-inch barrel from Harris Gunworks, Phoenix, Arizona. 50 Caliber Bolt Action Rifle Mode
Suppose you use M-93. The selected cartridges are brass case (Winchester), primer (CCI # 3
5), Powder (218 Grain ACC # 8700 made by Accurate Arms Powder), Bullet (750 Grain A made by Hornady)
Each was manufactured with the MAX Match bullet and a ballistic coefficient of 0.750). 50-Cal Browing machine gun cartridge. The computer is then used to execute a ballistic program to determine the bullet drop for this weapon / ammo combination. I own the copyright in 1988,
“Ballistic by WR Frenchu, based on Ingllas table
I like the V.4.0 ”software program, but Oehler Resea in Austin, Texas.
A software program such as "Ballistic Explorer for Windows" from rch may be used.

Upon entering the required data for the cartridge, such as altitude, temperature, atmospheric pressure, etc., the computer calculates impact points for various ranges. For example, a table that is zero at 500 yards (tab
See Figure 5 which shows le with a zero at 500 yards). Other tables can be calculated with zero values at other ranges. Here, for the purpose of explanation only, 500
You are just selecting a yard. For the shooter to understand how to “calibrate” the reticle,
A worksheet such as that shown in Figure 6 can be used.

The shooter can then select the size of the bullseye (or target area) to shoot with the reticle of the present invention. For example, the selected bullseye has a diameter of 6 inches (0.
1524 m), diameter 10 inches, 12 inches, 36 inches, 48 inches, etc. Everywhere you hit the bullseye, it's considered a hit. To illustrate this, I used a 12-inch bullseye range from 1100 yards to 1650 from direct to 1000 yards.
I used a 36-inch bullseye from the yard range.

When the shooter looks at the focusing screen through the eyepiece, the second horizontal crosshair is visible. These crosshairs are 2.
They are evenly spaced with a 5 inch of angle. Therefore, as shown in FIG.
The spacing between the first and second horizontal crosshairs below the first horizontal crosshair 22 is 2.5 inches of angle. First
The distance between the horizontal crosshairs 22 and the second horizontal crosshairs marked "5" is 15 inches of angle. This means that the adjoining crosshair is 2.5 at 100 yards.
Means to span an inch target. The spacing between the first horizontal crosshair and the second horizontal crosshair marked "5" covers a 15 inch target at 100 yards. At 200 yards, 5 adjacent crosshairs
Across the inch target, a first horizontal crosshair and a second crosshair marked "5" cover the 30 inch target. 6
At 00 yards, adjacent crosshairs straddle a 15-inch target, a first horizontal crosshair and a second horizontal crosshair marked "5" cover a 90-inch target, and so on. It can be seen that there is a linear relationship between the inch of angle scale and the range to the target indicated in yards.

Using the table as shown in FIG. 5 and the worksheet as shown in FIG. 6, the shooter "calibrates" the scope of the present invention for the particular weapon and ammunition selected. can do. As an illustration of this, a 500 yard zero table was chosen for illustration. Thus, the shooter marks the first horizontal crosshairs 22 on the worksheet at 500 (eg, if the target is just 500 yards from range, to shoot the target, the shooter marks the first horizontal crosshair 22). Choose aiming points along). Then, the range value of the first second horizontal crosshair below the first horizontal crosshair can be calculated. If you estimate a value between 600 and 700 yards, the shooter will
Inches in 0 yards (related to bullet drop)
The closest value can be obtained by calculating the angle of view.

[0027]

[Formula 2] (2.5 inches of angle / 100 yards) x 600 yards = 15.10 inches of angle

[0028]

[Formula 3] (2.5 inches of angle / 100 yards) x 700 yards = 17.50 inches of angle These calculated values are selected from the Ingalls table (in this example, the 500 yards zero table shown in Fig. 5) Match the value of. In the table, the trajectory for a 600 yard range is 18.4 inches. In the table, the trajectory of 700 yards is -44.6.
Inches. The calculated bullet drop at the first 2nd horizontal marker is 15.1 inches, and this correlates most closely with the trajectory shown at 600 yards (-18.4 inches) in the Ingalls table. The first second horizontal crosshair below the first horizontal crosshair is marked on the worksheet as 600 yards. Actual bullet impact is 12 diameter
It should be 3.3 inches below the middle of an inch bullseye (18.4-15.1 = 3.3), but it's a close shot as it's a hit within a 12 inch bullseye. The shooter then repeats this process to calibrate the reticle for all second horizontal crosshairs below the first horizontal crosshair. The results in this example can be used to shoot any target within range up to 1700 yards. The results of using this method can be seen in FIG. Longer range zero tables (eg, everything from the 600-yard zero table to the 2500-yard zero table) can be used to calibrate even longer ranges.

Alternatively, the shooter may place a second horizontal crosshair for use at aiming points for a particular range. For example, if the shooter wants to shoot at a target 1100 yards away, using the same 500-yard zero table found in Figure 5, a precise second horizontal crosshair for use as an aiming point is bracketed. Guess the two or three second horizontal crosshairs that would be dropped). The shooter infers that the exact crosshair is between the crosshairs recognized as 6 and 8. The shooter then performs the same calculation as before.

[0030]

[Equation 4] Crosshair ^# 6: (20 inches of angle / 100 yards) x 1100 yards = 220 inches of angle

[0031]

[Equation 5] Crosshair ^# 7: (25 inches of angle / 100 yards) x 1100 yards = 275 inches of angle

[0032]

## EQU6 ## Crosshair ^# 8: (30 inches of angle / 100 yards) × 1100 yards = 330 inches of angle 500 yards Looking at the table, the bullet drop at 1100 yards is 247 inches. This seems quite close to the middle. In order to verify (reconfirm) this guess,
The shooter performs the calculation on the second unmarked horizontal crosshair, which is located 22.5 inches of angle below the first horizontal crosshair, between crosshairs 6 and 7. You can

[0033]

[Equation 7] (22.5 inches of angle / 100 yards) x 1100 yards = 247.5 inches of angle This value is closest to the trajectory according to the 500 yards zero Ingalls table used in this example, and if used For example, it should coincide with just 0.5 inch off center.

After calibrating the scope for a particular weapon and ammo, the shooter can test the calculated values against actual performance at range. The values calculated using computer estimates, ballistic tables and calculations are only guides, but should be very close to actual performance. The final range value assigned to each of the second horizontal crosshairs should be based on the actual line firing test at various ranges of the selected weapon and ammunition. A minimum of three shots should be used to finally confirm the estimated values.

Once the reticle is calibrated as described above, it can be used to capture and shoot targets of all sizes in the field at very long unknown ranges. Although the preferred range for the preferred embodiment is at least 500 to 2500 yards (assuming the selected weapon / ammo combination can accurately hit the target at these ranges), as well as long range , The scope of the present invention can also be used to shoot targets at shorter ranges. in this case,
Limited only by the weapon's ability limits and the shooter's eyesight.

The preferred range finder shown in FIG. 2 can be readily used to accurately determine range to a known or deducible target. For example, with a 36-inch bullseye target placed at an unknown distance from the shooter, the shooter may place the right end of the target on the rangefinder vertical arm 3 so that the rangefinder horizontal arm 34 can pass through the center of the bullseye target.
Just align with 2. For example, if the left edge of the target extends to the crosshairs associated with the 6 inches of angle, the observed size of that target is 6 inches of angle and the range to the target is

[0037]

[Equation 8]         Range (yard) = (actual size inch of angle x 100) /                         (Observed size inches of angle) Or in this example,

[0038]

[Equation 9]         Range (yard) = (36 x 100/6) = (3600/6) = 600 yards Calculate with.

As a further example, assume that an archer is observing an elk eating vegetables from a distant garden near the house. The shooter estimates the size of the elk as 6 feet at the shoulder, relative to the door of the house.
While looking at this target in the reticle, the shooter aligns the rangefinder's horizontal arm 34 with the level of the ground on which the elk stands, and the rangefinder's vertical arm 32 with the elk's shoulder. The shooter seeks the point where the elk's shoulder touches the crosshair marked 5.

[0040]

[Equation 10] Range (Yard) = 75/5 × 100 = 1440 yards After calculating the range, the shooter then takes the calibrated focus without taking his eyes off the target or adjusting the scope at all. The proper aiming point on the board can be selected.

Since it is often not possible to accurately infer the target windage problem, especially at excessively long range, skilled shooters will be able to focus on the focus of the invention after the drift of the shot has been observed. It is easiest to make corrections using plates. As mentioned above, the second vertical crosshairs are evenly spaced every 5 inches of angle, which provides a scale for adjusting the second shot at the target. For example, the caliber is. 15 50-inch bullets
Fire at the target at 00 yards. The midpoint between the first vertical crosshairs and the second horizontal crosshairs indicated by reference numeral 11 is the selected aiming point. It was observed that the bullet was shifted to the right by about two second vertical crosshairs from the center. To correct this drift, the shooter shifts the aiming point to the midpoint, indicated by reference numeral 11, between the second vertical crosshair and the horizontal crosshair to the right of the first vertical crosshair. , Just effectively move the barrel of the weapon left an appropriate distance to compensate for the windage.
Similarly, if the bullet passes the target too high or too low above the target, the shooter may use the second horizontal marking for range adjustment. For example, if a bullet is observed to pass a position two second horizontal markings above the selected aiming point as it passes through the target, the shooter places the second aiming point at the second aiming point.
It shifts by two horizontal crosshairs, which allows quick adjustments by lowering the barrel of the firearm.

If it is not possible to determine the drift of the bullet visually, the shooter may use a table, weapons, and ammunition that takes local conditions into account to determine the amount of deviation from the selected range. it can. See FIG. 8 for a table illustrating this. 8 in the condition shown in FIG. 8 and due to the wind crossing the shooter from left to right.
The projected bullet deviation at 00 yards is 54.
It is 1 inch. The calculation of aiming points for windage is simple as follows.

[0043]

[Equation 11]           (Focal plate inch of angle / 100 yards) x 1000 yards             = 54.1 inches

[0044]

## EQU12 ## inch of angle of reticle = (54.1 inch × 100 yards / 1000 yards) = 5.41 Therefore, the shooter is to the right of the exact second horizontal crosshair and the first vertical crosshair at 1000 yards. By choosing a midpoint between the first second vertical crosshairs (5 inches of angle away from the first vertical crosshair, as described in the preferred embodiment), the first shot You can modify the windage.

Those skilled in the art will readily appreciate that the present invention can be constructed from a variety of materials in a variety of different ways. While the preferred embodiment has been described in detail and provided with the accompanying drawings, it will be apparent that various further modifications are possible without departing from the scope of the invention as set forth in the appended claims. . [Brief description of drawings]

FIG. 1 is a diagram showing the optical components of a telescope sighting device of the present invention.

FIG. 2 is a front view of a reticle of the present invention showing markings viewed through a high power, zoom telescope.
The spacing of this marking is based on the "inch of angle" scale.

FIG. 3 is a front view of the reticle of the present invention showing markings viewed through a low power, zoom telescope.

FIG. 4 is a partial side view of a firearm showing a telescope sighting mounted on a barrel.

FIG. 5 Caliber. 50 inch Browning Machine Gun
Caliber with 30 inch barrel manufactured to fire cartridge. 50 inch Bolt Action Mode
1 is an example of a 500-yard zero ballistic table created for the M-93 Rifle.

FIG. 6 is an example of a worksheet that can be used to calibrate markings on the reticle of the present invention.

FIG. 7 is a worksheet completed based on the table shown in FIG.

FIG. 8 is an illustrative table providing data for determining the proper windage adjustment for the example.

FIG. 9 is a focusing screen of the present invention based on a “centimeter of angle” scale.

[Explanation of symbols]

10 sights 12 Objective lens 14 eyepiece 16 Variable power optical components 18 Focus plate 20 First vertical crosshair 21 optical heart 22 1st horizontal crosshair 24 Second horizontal crosshair 26 Second vertical crosshair 28 symbols 30 range finder 32 vertical arm (vertical marking) 34 Horizontal arm (horizontal marking) 36 housing 38 gun barrels

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Claims (20)

(57) [Claims] 1. An improved telescope, the housing having means for mounting the housing in a fixed position relative to a gun barrel, and an objective lens mounted at one end of the housing. An eyepiece lens attached to an end portion of the housing facing the one end, and further comprising a focusing plate attached between the objective lens and the eyepiece lens in the housing, Has an optical center and a plurality of aiming points, and the aiming point is formed by a first vertical crosshair that intersects the optical center of the focusing screen, and the first horizontal crosshair is at a position sufficiently above the optical center. Intersecting the first vertical crosshair to provide at least one aiming point for a target at a range greater than 500 yards, The horizontal crosshair upper right quadrant when said housing is attached to the gun barrel, the upper left quadrant, lower right 4
Forming a quadrant and a lower left quadrant, and the plurality of second horizontal crosshairs are located above or below the first horizontal crosshairs, intersect the first vertical crosshairs, and form the first vertical crosshairs. A plurality of second vertical cruciforms intersecting at least a plurality of the second horizontal cruciforms and spaced at a predetermined distance along at least a plurality of the second horizontal cruciforms,
The respective intersections between the horizontal crosshairs and the vertical crosshairs form the plurality of aiming points, are positioned on the reticle, and have markings for determining range to a known or predictable target. An improved telescope sighting device further comprising optical range finder means including. 2. A variable power optics for allowing a user to select an optical power of a sighting device within a predetermined range, wherein the focusing screen is mounted between the variable power optics and the objective lens. An improved telescope sight according to claim 1, characterized. 3. The improved telescope sight according to claim 1, wherein the range finder marking and the crosshair are all based on the same scale. 4. The improved telescopic aim according to claim 1, wherein the rangefinder markings and the crosshairs are all based on an inch of angle or centimeter of angle graduation. vessel. 5. The improved telescope according to claim 1, wherein at least some of the second horizontal crosshairs have unique markings for identification purposes. 6. The range finder is one of the quadrants.
The improved telescope as claimed in claim 1, characterized in that it is arranged in one. 7. A reticle for use in said telescope, comprising a mount for mounting the sight in a fixed position relative to a gun barrel, said reticle having an optical center. A predetermined thickness (thickness) that intersects the optical center of the focusing screen
A first vertical crosshair that spans the reticle and at least one aiming point for a target at a range of more than 500 yards at a position well above the optical center of the reticle. It intersects with one vertical crosshair, and the upper right quadrant, upper left quadrant, and lower left 4
A first circle having a predetermined thickness that intersects the first vertical crosshairs and straddles the focusing screen to form a quadrant and a lower right quadrant.
A plurality of second horizontal crosshairs each having a predetermined thickness, the horizontal crosshairs having a predetermined thickness, and the second horizontal crosshairs having the predetermined thickness. Forming an aiming point with one vertical crosshair, each of the second horizontal crosshairs being shorter than the first horizontal crosshair, and spaced at equal intervals along at least some of the second horizontal crosshairs; , A plurality of second vertical crosshairs having a predetermined thickness, each of the second vertical crosshairs forming an aiming point with the second horizontal crosshair, and each of the second vertical crosshairs.
The focusing screen is characterized in that the vertical crosshair is shorter than the first vertical crosshair and has an optical range finding marking. 8. The focusing screen according to claim 7, wherein the upper left quadrant and the upper right quadrant have a smaller range than the lower left quadrant and the lower right quadrant. 9. The range finder marking includes a vertical marking and a horizontal marking intersecting with the vertical marking,
8. The reticle of claim 7, wherein each of the markings has a plurality of range finding crosshairs that are equally spaced. 10. The reticle of claim 9, wherein the widths of the vertical and horizontal crosshairs, the range finding crosshairs, and the spacing therebetween are all based on the same scale. 11. The vertical and horizontal crosshairs, the width of the range finding crosshairs, and the spacing therebetween are all based on an inch of angle or centimeter of angle scale. 10. The reticle of claim 9 characterized. 12. The reticle of claim 7, wherein at least some of the second horizontal crosshairs have unique markings for identification purposes. 13. The focusing screen according to claim 7, wherein the range finder means is located in the lower left quadrant. 14. The range finder marking comprises:
10. A horizontal crosshair is defined by a horizontal crosshair.
The focusing screen described in. 15. The range finder marking comprises:
10. A vertical crosshair is defined by a vertical crosshair.
The focusing screen described in. 16. A method for shooting a conventional or speculative size target with a projectile fired from a small firearm at a range of over 500 yards using a telescope sighting attached to a small firearm. When the telescopic sighting device has a reticle provided with an optical center, a first vertical cross line intersecting the optical center of the reticle, and the sighting device is attached to the firearm. , Upper right quadrant, upper left quadrant, lower left 4
A first horizontal crosshair that intersects the first vertical crosshair at a position sufficiently above the optical center to form a quadrant, a lower right quadrant, and at equal intervals along the first vertical crosshair. Related to a plurality of second horizontal crosshairs spaced apart, a plurality of second vertical crosshairs spaced at equal intervals along at least some of the second horizontal crosshairs, and at least some of the second horizontal crosshairs With a unique identification marking and an optical rangefinder located in one of the quadrants, the method searching for a known or predictable real size target at a range of more than 500 yards. , Measuring the target range to determine an observed size, determining the plurality of equally spaced markings on the range finder, and calibrating the actual size and the observed size. Relationship Calculating a range up to the target using, selecting a predetermined horizontal crosshair from the first and second horizontal crosshairs in order to correlate with the calculated range; As an aiming point on the selected horizontal crosshair, selecting an intersection between the selected horizontal crosshairs and vertical crosshairs based on windage determination, aligning the center of the target with the selected aiming point, and Shooting a target, the method comprising: 17. The telescope is calibrated for range before firing a target so that the horizontal crosshairs have known range values based on relevant factors including firearm and ammunition used. 17. The method of claim 16, comprising: 18. Calibration is performed by selecting a range to zero the aiming point formed by the intersection of the first vertical crosshairs and the first horizontal crosshairs, the selected small scales being selected. Performed by finding the relevant range for the second horizontal crosshair using a firearm, ammunition, and a ballistic table appropriate to the selected zero range, confirming the calculated range by actually firing at a range. 18. The method of claim 17, wherein the method is performed by or by adjusting. 19. The scale is an inch of angle, and the range is as follows: range = [actual size (inch) / observed size (inch for 100 yards)] × 100 (yard) The calculation is performed by using a calculation.
The method described in. 20. The second vertical crosshair used for the aiming point is selected after determining the windage correction necessary for the calculated range to the target. the method of.